function udtf(int, val) {
	if (val == '') {
		document.forms[0].trash_dir.value='Please enter a user name';
		document.forms[0].trash_file.value='Please enter a user name';
		document.forms[0].trash_dir.disabled=true;
		document.forms[0].trash_file.disabled=true;
	} else {
		document.forms[0].trash_dir.disabled=false;
		document.forms[0].trash_file.disabled=false;
		document.forms[0].trash_dir.value=int+'trash/'+val+'/';
		document.forms[0].trash_file.value=int+val+'.optf';
	}
}